EP 0087557 B1 19850515 - PIPE CONNECTION FOR METAL PIPES
Title (en)
PIPE CONNECTION FOR METAL PIPES
Publication
Application
Priority
- DE 3207180 A 19820227
- DE 3207181 A 19820227
- DE 3207183 A 19820227
Abstract (en)
[origin: US4611838A] Two metallic pipes to be sealingly interfitted are respectively provided with a plug-shaped male extremity and a socket-shaped female extremity having mating frustoconical peripheral threads and adjoining unthreaded annular peripheral formations closely contacting each other upon assembly. An annular end face of the male extremity and a confronting annular shoulder of the female extremity, lying in planes transverse to the pipe axis or on frustoconical surfaces of large apex angle converging toward the entrance end of the socket upon assembly, respectively have one or more annular rabbets and ribs centered on the pipe axis with profiles having outer or inner flanks parallel to that axis and closely juxtaposed in the fully assembled position in which the top of each rib abuts the bottom of an associated rabbet.
IPC 1-7
IPC 8 full level
F16L 15/04 (2006.01); F16L 15/06 (2006.01); E21B 17/042 (2006.01)
CPC (source: EP US)
E21B 17/042 (2013.01 - EP US); F16L 15/004 (2013.01 - EP US); F16L 15/04 (2013.01 - EP US)
Designated contracting state (EPC)
AT FR GB IT NL SE
DOCDB simple family (publication)
US 4611838 A 19860916; BR 8300921 A 19831116; EP 0087557 A1 19830907; EP 0087557 B1 19850515
DOCDB simple family (application)
US 46938783 A 19830224; BR 8300921 A 19830225; EP 83100195 A 19830112